US20170001902A1 - Method of making a red-glass vessel - Google Patents

Method of making a red-glass vessel Download PDF

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Publication number
US20170001902A1
US20170001902A1 US15/114,535 US201515114535A US2017001902A1 US 20170001902 A1 US20170001902 A1 US 20170001902A1 US 201515114535 A US201515114535 A US 201515114535A US 2017001902 A1 US2017001902 A1 US 2017001902A1
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US
United States
Prior art keywords
mass
glass composition
molten glass
content
sulphate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/114,535
Inventor
Harald Zimmermann
Khaled Al Hamdan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Verallia Deutschland AG
Original Assignee
Saint Gobain Oberland AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint Gobain Oberland AG filed Critical Saint Gobain Oberland AG
Assigned to SAINT-GOBAIN OBERLAND AG reassignment SAINT-GOBAIN OBERLAND AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AL HAMDAN, KHALED, ZIMMERMANN, HARALD
Publication of US20170001902A1 publication Critical patent/US20170001902A1/en
Abandoned legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • C03C1/10—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels to produce uniformly-coloured transparent products
    • C03C1/105—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels to produce uniformly-coloured transparent products by the addition of colorants to the forehearth of the glass melting furnace
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B25/00—Annealing glass products
    • C03B25/02—Annealing glass products in a discontinuous way
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
    • C03B29/02—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a discontinuous way
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • C03C1/004—Refining agents
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C4/00—Compositions for glass with special properties
    • C03C4/02—Compositions for glass with special properties for coloured glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2204/00—Glasses, glazes or enamels with special properties

Definitions

  • the invention relates to a method of making a red-glass container.
  • a method of this type of making red copper ruby glass or red-colored borosilicate glass is known from DE 10 2004 001 729 A1.
  • the object of the invention is to provide a method of making a red-glass container in which, on the one hand, starting materials or raw materials that can be obtained at a comparatively low economical cost and that are also food grade materials can be used, wherein, in addition, the control and regulation of the parameters to be observed during the production method is accompanied by a low level of effort.
  • This object is achieved in accordance with the invention by a method of making a red-glass container, wherein a colorless molten glass composition containing from 0.2 to 3% by mass of tin oxide and from 0.06 to 3% by mass of copper oxide is produced, wherein the produced colorless molten glass composition is refined under neutral conditions with sodium sulphate and/or calcium sulphate and with a carbon-containing reducing agent with a molar carbon/sulphate ratio of from 0.5 to 5, wherein glass containers are molded from the glass composition refined under neutral conditions, and in which the glass containers are cooled to a temperature of below 520° C. to 580° C.
  • the requirements on the starting material or the raw materials are considerably reduced compared to the prior art.
  • activated carbon can advantageously be used as carbon-containing reducing agent, wherein, as a result of the use of activated carbon, the molar carbon/sulphate ratio can be adjusted or maintained at the necessary ratio with an extremely low level of effort.
  • the content of tin oxide is 0.5 to 1.5% by mass, preferably approximately 1% by mass, and the content of copper oxide is 0.1 to 0.35% by mass, preferably approximately 0.2% by mass, wherein the economical outlay can be considerably reduced further still.
  • tin oxide and copper oxide in the colorless molten glass composition can be reduced when the glass containers cooled below the temperature of from 520° C. to 580° C. are subjected to a secondary heat treatment, preferably at approximately 620 degrees C.
  • the glass network can be advantageously modified in order to accelerate the annealing or tarnishing process and/or in order to keep temperatures necessary for the execution of the method as low as possible.
  • phosphates preferably calcium phosphates and in particular with di-calcium phosphate and/or tri-calcium phosphate
  • the glass network can be advantageously modified in order to accelerate the annealing or tarnishing process and/or in order to keep temperatures necessary for the execution of the method as low as possible.
  • calcium phosphates, in particular di-calcium phosphate and/or tri-calcium phosphate have proven to be particularly advantageous, since they are pH-neutral and are absolutely non-toxic.
  • di-calcium phosphate and tri-calcium phosphate occur with a low fluorine content and can be used advantageously in this form for the method according to the invention, since high fluorine contents are associated with disadvantages in the case of the method according to the invention.
  • Di-calcium phosphate also known as calcium hydrogen phosphate
  • Tri-calcium phosphate also known as spodium or bone ash, likewise can be mined and is additionally obtainable as waste or residual material and, similarly to di-calcium phosphate, can be used and exploited as raw material in the method according to the invention.
  • a content of from approximately 0.01 to 5% by mass has proven to be particularly advantageous both in terms of the phosphates and in terms of the boric acids.
  • the colorless molten glass composition is produced with metal compounds and/or heavy metal compounds, such as PbO and/or PbS and/or Bi 2 O 3 and/or Bi 2 S 3 , wherein BiO 2 has proven to be the least objectionable of all heavy metals and has therefore proven to be particularly advantageous.
  • metal compounds and/or heavy metal compounds such as PbO and/or PbS and/or Bi 2 O 3 and/or Bi 2 S 3 , wherein BiO 2 has proven to be the least objectionable of all heavy metals and has therefore proven to be particularly advantageous.
  • a content of PbO and/or PbS and/or Bi 2 O 3 and/or Bi 2 S 3 of, in each case, 0.01 to 3% by mass has proven to be particularly advantageous.
  • a red-glass container produced accordingly are advantageously suitable in particular as containers for foodstuffs and/or beverages.
  • the glass melt is adjusted such that it is neither oxidizing nor reducing.
  • a colorless molten glass compound is firstly produced from suitable raw materials and serves as starting material for the method according to the invention.
  • Tin oxide and copper oxide are contained in the glass composition, wherein the content of tin oxide is approximately 1% by mass and the content of copper oxide is approximately 0.2% by mass.
  • Di-calcium phosphate and/or tri-calcium phosphate are/is also contained in the glass composition, wherein the content of di-calcium phosphate and/or tri-calcium phosphate is approximately 0.01 to 5% by mass.
  • the colorless molten glass composition can contain boric acid, wherein a range of from 0.01 to 5% by mass has proven to be particularly advantageous in view of the content of boric acid as well.
  • the phosphate and/or the boric acid serve/serves to modify the glass network so that the annealing or tarnishing process can be accelerated and the necessary tarnishing temperatures can be kept as low as possible.
  • the colorless molten glass composition is produced with Bi2O3, more specifically with a content between 0.01 and 3% by mass.
  • PbO and/or PbS and/or Bi 2 S 3 can also be used for the same purpose.
  • the colorless molten glass composition is refined under neutral conditions with sodium sulphate and/or calcium sulphate and with activated carbon.
  • a molar carbon/sulphate ratio of approximately 1.0 is observed.
  • glass containers are molded from the glass composition refined accordingly under neutral conditions.
  • a secondary heat treatment is performed following this cooling and is carried out at approximately 620° C.
  • the glass containers produced accordingly are then cooled.
  • the glass containers have the desired red coloration. They are also suitable in particular for receiving foodstuffs or beverages.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Glass Compositions (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

In order to provide a method which can produce red glass vessels and which is attended by low cost in respect of the raw materials/starting materials and also in respect of control of process parameters, an appropriate method for producing red glass vessels is proposed in which a colourless molten glass composition containing at most 3% by mass of tin oxide and at most 3% by mass of copper oxide is produced, where the resultant colourless molten glass composition is refined under neutral conditions with sodium sulphate and/or calcium sulphate and with a carbon-containing reducing agent with a molar carbon/sulphate ratio of from 0.5 to 5, where glass vessels are moulded from said refined glass composition, and where the glass vessels are cooled to a temperature of below 520 degrees C. to 580 degrees C.

Description

  • The invention relates to a method of making a red-glass container.
  • Different corresponding methods of making a red-glass container are known from the prior art. These known methods, however, are elaborate either in terms of their requirements on the starting material or on the control of the parameters during the production process.
  • A method of this type of making red copper ruby glass or red-colored borosilicate glass is known from DE 10 2004 001 729 A1.
  • The object of the invention is to provide a method of making a red-glass container in which, on the one hand, starting materials or raw materials that can be obtained at a comparatively low economical cost and that are also food grade materials can be used, wherein, in addition, the control and regulation of the parameters to be observed during the production method is accompanied by a low level of effort.
  • This object is achieved in accordance with the invention by a method of making a red-glass container, wherein a colorless molten glass composition containing from 0.2 to 3% by mass of tin oxide and from 0.06 to 3% by mass of copper oxide is produced, wherein the produced colorless molten glass composition is refined under neutral conditions with sodium sulphate and/or calcium sulphate and with a carbon-containing reducing agent with a molar carbon/sulphate ratio of from 0.5 to 5, wherein glass containers are molded from the glass composition refined under neutral conditions, and in which the glass containers are cooled to a temperature of below 520° C. to 580° C. With the method according to the invention, the requirements on the starting material or the raw materials are considerably reduced compared to the prior art. By way of example, there are no requirements to be met or satisfied in terms of the sulphide content of the starting material. Those method parameters that must be observed imperatively for the success of the production process according to the invention can be held within the admissible value ranges with a comparatively low control and regulation effort.
  • In the method according to the invention, activated carbon can advantageously be used as carbon-containing reducing agent, wherein, as a result of the use of activated carbon, the molar carbon/sulphate ratio can be adjusted or maintained at the necessary ratio with an extremely low level of effort.
  • It has proven to be advantageous when the content of tin oxide is 0.5 to 1.5% by mass, preferably approximately 1% by mass, and the content of copper oxide is 0.1 to 0.35% by mass, preferably approximately 0.2% by mass, wherein the economical outlay can be considerably reduced further still.
  • With regard to the molar carbon/sulphate ratio to be observed, it has proven to be particularly advantageous when the produced colorless molten glass composition is refined under neutral conditions with sodium sulphate and/or calcium sulphate and with activated carbon with a molar carbon/sulphate ratio of from 0.5 to 2, preferably of approximately 1.0.
  • The use of tin oxide and copper oxide in the colorless molten glass composition can be reduced when the glass containers cooled below the temperature of from 520° C. to 580° C. are subjected to a secondary heat treatment, preferably at approximately 620 degrees C.
  • When the colorless molten glass composition is produced with phosphates, preferably calcium phosphates and in particular with di-calcium phosphate and/or tri-calcium phosphate, the glass network can be advantageously modified in order to accelerate the annealing or tarnishing process and/or in order to keep temperatures necessary for the execution of the method as low as possible. Here, calcium phosphates, in particular di-calcium phosphate and/or tri-calcium phosphate, have proven to be particularly advantageous, since they are pH-neutral and are absolutely non-toxic. Both di-calcium phosphate and tri-calcium phosphate occur with a low fluorine content and can be used advantageously in this form for the method according to the invention, since high fluorine contents are associated with disadvantages in the case of the method according to the invention. Di-calcium phosphate, also known as calcium hydrogen phosphate, is usually mined and is additionally created as waste material in the foodstuffs industry. Tri-calcium phosphate, also known as spodium or bone ash, likewise can be mined and is additionally obtainable as waste or residual material and, similarly to di-calcium phosphate, can be used and exploited as raw material in the method according to the invention.
  • Is also possible to produce the colorless molten glass composition with boric acid, wherein this also serves to modify the glass network in order to accelerate the annealing or tarnishing process and/or to minimize the tarnishing temperatures.
  • A content of from approximately 0.01 to 5% by mass has proven to be particularly advantageous both in terms of the phosphates and in terms of the boric acids.
  • For accelerated nucleation, it has proven to be expedient when the colorless molten glass composition is produced with metal compounds and/or heavy metal compounds, such as PbO and/or PbS and/or Bi2O3 and/or Bi2S3, wherein BiO2 has proven to be the least objectionable of all heavy metals and has therefore proven to be particularly advantageous.
  • With regard to the content by mass of the above-described substances in the colorless molten glass composition, a content of PbO and/or PbS and/or Bi2O3 and/or Bi2S3 of, in each case, 0.01 to 3% by mass has proven to be particularly advantageous.
  • A red-glass container produced accordingly are advantageously suitable in particular as containers for foodstuffs and/or beverages.
  • In the refinement under neutral conditions performed in the case of the invention, the glass melt is adjusted such that it is neither oxidizing nor reducing.
  • The invention will be explained in greater detail hereinafter on the basis of an embodiment.
  • A colorless molten glass compound is firstly produced from suitable raw materials and serves as starting material for the method according to the invention. Tin oxide and copper oxide are contained in the glass composition, wherein the content of tin oxide is approximately 1% by mass and the content of copper oxide is approximately 0.2% by mass.
  • Di-calcium phosphate and/or tri-calcium phosphate are/is also contained in the glass composition, wherein the content of di-calcium phosphate and/or tri-calcium phosphate is approximately 0.01 to 5% by mass.
  • Alternatively or additionally to the tri-calcium phosphate, the colorless molten glass composition can contain boric acid, wherein a range of from 0.01 to 5% by mass has proven to be particularly advantageous in view of the content of boric acid as well.
  • The phosphate and/or the boric acid serve/serves to modify the glass network so that the annealing or tarnishing process can be accelerated and the necessary tarnishing temperatures can be kept as low as possible.
  • In order to accelerate the nucleation, the colorless molten glass composition is produced with Bi2O3, more specifically with a content between 0.01 and 3% by mass.
  • Instead of Bi2O3, PbO and/or PbS and/or Bi2S3 can also be used for the same purpose.
  • What is essential in the case of the above-described materials is that they are metal compounds or heavy metal compounds that can easily precipitate out in the metallic state under the redox conditions provided in the glass melt.
  • The colorless molten glass composition is refined under neutral conditions with sodium sulphate and/or calcium sulphate and with activated carbon. Here, a molar carbon/sulphate ratio of approximately 1.0 is observed.
  • By the methods known from the prior art, glass containers are molded from the glass composition refined accordingly under neutral conditions.
  • Once the molding of the glass containers is complete, these are cooled to a temperature of below 520 degrees C. to 580° C.
  • In the described illustrated embodiment of the method according to the invention, a secondary heat treatment is performed following this cooling and is carried out at approximately 620° C. The glass containers produced accordingly are then cooled. At the end of the above-described production method, the glass containers have the desired red coloration. They are also suitable in particular for receiving foodstuffs or beverages.

Claims (13)

1. A method of making a red-glass container, the method comprising the steps of:
making a colorless molten glass composition containing at most 3% by mass of tin oxide and at most 3% by mass of copper oxide;
refining the colorless molten glass composition under neutral conditions with sodium sulphate or calcium sulphate and with a carbon-containing reducing agent with a molar carbon/sulphate ratio of from 0.5 to 5;
molding a glass container from the glass composition refined under neutral conditions; and
cooling the glass container to a temperature of below 520° C. to 580° C.
2. The method according to claim 1, wherein activated carbon is used as carbon-containing reducing agent.
3. The method according to claim 1, wherein the colorless molten glass composition is made with a content of tin oxide of from 0.2 to 3% by mass and with a content of copper oxide of from 0.06 to 3% by mass.
4. The method according to claim 3, wherein the colorless molten glass composition is made with a content of tin oxide of from 0.5 to 1.5% by mass and with a content of copper oxide of from 0.1 to 0.35% by mass.
5. The method according to claim 1, wherein the colorless molten glass composition is refined under neutral conditions with sodium sulphate or calcium sulphate and with activated carbon with a molar carbon/sulphate ratio of from 0.5 to 2.
6. The method according to claim 1, further comprising the step of:
heat-treating the glass container cooled below a temperature of from 520° C. to 580° C. at approximately 620° C.
7. The method according to claim 1, further comprising the step of:
making the colorless molten glass composition di-calcium phosphate or tri-calcium phosphate.
8. The method according to claim 7, wherein the colorless molten glass composition is made with a content of phosphates of from 0.01 to 5% by mass.
9. The method according to claim 1, wherein the colorless molten glass composition is made with boric acid.
10. The method according to claim 9, wherein the colorless molten glass composition is made with a content of boric acid of from 0.01 to 5% by mass.
11. The method according to claim 1 wherein the colorless molten glass composition is made with PbO or PbS pr Bi2O3 or Bi2S3.
12. The method according to claim 11, wherein the colorless molten glass compound is made with a content of PbO or PbS or Bi2O3 and/ or Bi2S3 of 0.01 to 3% by mass.
13. Use of a red-glass container made in accordance with any claim 1 as a container for foodstuffs or beverages.
US15/114,535 2014-03-26 2015-02-26 Method of making a red-glass vessel Abandoned US20170001902A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102014004332.0 2014-03-26
DE102014004332.0A DE102014004332B4 (en) 2014-03-26 2014-03-26 Process for producing red glass containers
PCT/EP2015/000456 WO2015144283A1 (en) 2014-03-26 2015-02-26 Method for producing red glass vessels

Publications (1)

Publication Number Publication Date
US20170001902A1 true US20170001902A1 (en) 2017-01-05

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Family Applications (1)

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US15/114,535 Abandoned US20170001902A1 (en) 2014-03-26 2015-02-26 Method of making a red-glass vessel

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US (1) US20170001902A1 (en)
EP (1) EP3122692B1 (en)
CA (1) CA2939674C (en)
CL (1) CL2016002370A1 (en)
DE (1) DE102014004332B4 (en)
DK (1) DK3122692T3 (en)
ES (1) ES2690982T3 (en)
HR (1) HRP20181641T1 (en)
HU (1) HUE040550T2 (en)
MX (1) MX2016012322A (en)
PL (1) PL3122692T3 (en)
PT (1) PT3122692T (en)
WO (1) WO2015144283A1 (en)

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US2751714A (en) * 1951-02-01 1956-06-26 Glaceries De St Roch Sa Process and apparatus for the continuous production of flashed glass
US2955384A (en) * 1958-02-27 1960-10-11 Owens Illinois Glass Co Apparatus for producing color-controlling vitreous materials
US3330638A (en) * 1964-05-27 1967-07-11 Owens Illinois Inc Method of feeding mixed colorants to glass in the forehearth
US3445216A (en) * 1962-12-06 1969-05-20 Owens Illinois Inc Molten addition of colorant in a glass furnace forehearth
US3833388A (en) * 1972-07-26 1974-09-03 Ppg Industries Inc Method of manufacturing sheet and float glass at high production rates
US3997464A (en) * 1975-05-15 1976-12-14 American Cyanamid Company Plastic lenses for glass melters
US4133666A (en) * 1978-04-28 1979-01-09 Spectrum Glass Company, Inc. Method and apparatus for making variegated glass in a continuous sheet
US4325724A (en) * 1974-11-25 1982-04-20 Owens-Corning Fiberglas Corporation Method for making glass
US20040204304A1 (en) * 2001-12-27 2004-10-14 Hockman John Albert Method of manufacturing glass and compositions therefore
US20050039491A1 (en) * 2001-11-27 2005-02-24 Saint-Gobain Isover Device and method for melting vitrifiable materials
US7091141B2 (en) * 2003-04-01 2006-08-15 Corning Incorporated Lamp reflector substrate, glass, glass-ceramic materials and process for making the same
US20120196126A1 (en) * 2009-06-19 2012-08-02 Ferro Corporation Copper Red Frits And Pigments
US20140012027A1 (en) * 2011-03-10 2014-01-09 Taiyo Nippon Sanso Corporation Method for Producing Fluorine-Containing Substituted Compound and Fluorine-Containing Substituted Compound

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DE10053450B4 (en) * 2000-10-27 2008-04-30 Schott Ag Red glass, process for its preparation and its use
DE102004001729B4 (en) * 2004-01-13 2006-01-12 Schott Ag Process for the preparation of a red-colored borosilicate glass
FR2911868B1 (en) * 2007-01-26 2009-03-13 Saint Gobain Emballage Sa METHOD OF MANUFACTURING GLASS
US9725354B2 (en) * 2012-11-01 2017-08-08 Owens-Brockway Glass Container Inc. Color-strikable glass containers

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2324812A (en) * 1941-07-25 1943-07-20 Ferro Enamel Corp Porcelain enamel
US2751714A (en) * 1951-02-01 1956-06-26 Glaceries De St Roch Sa Process and apparatus for the continuous production of flashed glass
US2955384A (en) * 1958-02-27 1960-10-11 Owens Illinois Glass Co Apparatus for producing color-controlling vitreous materials
US3445216A (en) * 1962-12-06 1969-05-20 Owens Illinois Inc Molten addition of colorant in a glass furnace forehearth
US3330638A (en) * 1964-05-27 1967-07-11 Owens Illinois Inc Method of feeding mixed colorants to glass in the forehearth
US3833388A (en) * 1972-07-26 1974-09-03 Ppg Industries Inc Method of manufacturing sheet and float glass at high production rates
US4325724A (en) * 1974-11-25 1982-04-20 Owens-Corning Fiberglas Corporation Method for making glass
US3997464A (en) * 1975-05-15 1976-12-14 American Cyanamid Company Plastic lenses for glass melters
US4133666A (en) * 1978-04-28 1979-01-09 Spectrum Glass Company, Inc. Method and apparatus for making variegated glass in a continuous sheet
US20050039491A1 (en) * 2001-11-27 2005-02-24 Saint-Gobain Isover Device and method for melting vitrifiable materials
US20040204304A1 (en) * 2001-12-27 2004-10-14 Hockman John Albert Method of manufacturing glass and compositions therefore
US7091141B2 (en) * 2003-04-01 2006-08-15 Corning Incorporated Lamp reflector substrate, glass, glass-ceramic materials and process for making the same
US20120196126A1 (en) * 2009-06-19 2012-08-02 Ferro Corporation Copper Red Frits And Pigments
US20140012027A1 (en) * 2011-03-10 2014-01-09 Taiyo Nippon Sanso Corporation Method for Producing Fluorine-Containing Substituted Compound and Fluorine-Containing Substituted Compound

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CA2939674A1 (en) 2015-10-01
PL3122692T3 (en) 2018-12-31
ES2690982T3 (en) 2018-11-23
WO2015144283A1 (en) 2015-10-01
CA2939674C (en) 2023-03-07
HUE040550T2 (en) 2019-03-28
EP3122692B1 (en) 2018-07-25
DE102014004332A1 (en) 2015-10-01
HRP20181641T1 (en) 2019-10-04
DE102014004332B4 (en) 2016-08-11
PT3122692T (en) 2018-11-13
CL2016002370A1 (en) 2017-01-20
MX2016012322A (en) 2017-02-23
EP3122692A1 (en) 2017-02-01
DK3122692T3 (en) 2018-10-22

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